You may have a favorite bra, but you shouldn't wear it all the time, both at and off work. Only one bra will not work for all fashions and functions. When buying a bra you should be analyze your lifestyle first, and that goes out not only for bras but for clothes generally. For example if you are a lawyer you won’t buy 10 pairs of snickers and 1 pair of high heels, why should the bra choice be any different!